The Prediction and Evaluation of the Groundwater Quality of Taikang Formation in Tertiary in West Of Daqing Oilfield by Using Resistivity Logging Data

摘要

In order to research the groundwater quality of the Taikang Formation in Tertiary in west of Daqing Oilfield,resistivity logging data of 140 wells in the study area were analyzed to forecast the groundwater total dissolved solids (TDS) distribution of the plane,and the relationship between the groundwater quality and sedimentary sand body and buried depth is analyzed.When the resistivity logging value (Rt) of the Taikang Formation in Tertiary is above 45Ω·m and its corresponding value of Formation water TDS is below 1000 mg/L,the quality of groundwater accords with life standards for drinking.The south area of Hongweixing well area and the east of Xishuiyuan well area,including Ranghulu,Qianjincun,Dulitun and Nanshuiyuan well area are favorable for high quality groundwater.The shallower buried water quality is better than the deeper buried water quality of the Taikang Formation in Tertiary.The research provides the evidences to evaluate the groundwater quality in west Daqing Oilfield and determine specific well location,improving the efficiency of exploring the underground drinking water.